Question

Calculate each of the following quantities:

(c) Molarity of 275 mL of solution containing 135 mmol of glucose

Answer 1

To calculate the molarity of a 275 mL solution containing 135 mmol of glucose, divide the moles of glucose (0.135 mol) by the volume of solution in liters (0.275 L) to get a molarity of 0.491 M.

Step-by-step explanation:

To calculate the molarity of a solution, you should use the formula:

Molarity = moles of solute / liters of solution

Here, you have 135 mmol (or 0.135 mol) of glucose and the volume of the solution is 275 mL (or 0.275 L). Applying the formula:

Molarity = 0.135 mol / 0.275 L = 0.4909 M

Therefore, the molarity of the glucose solution is 0.491 M (rounded to three significant figures).